I made this in about 10 minutes, so it may not be the best. Use the arrow keys to move, 's' to skip, 'r' to restart, and one type of block is dangerous. Can you guess which? (Super easy!) Some levels will be impossible, so don't bother to keep on trying if you can't pass a level. This was super easy to make, but I did for some reason. Also, you may need to spam the flag to get it to work...